MAAM-010651 Amplifier, Buffer 37 - 40 GHz Rev. V4 Functional Schematic Features High Gain: 21 dB Output P1dB: 20 dBm Variable Gain with Adjustable Bias Lead-Free 3 mm QFN Package Halogen-Free "Green" Mold Compound RoHS* Compliant Description The MAAM-010651 is a 3-stage, buffer amplifier with a 20 dBm output P1dB. The surface mount 3 mm QFN package allows easy assembly. This amplifier is fully matched to 50 ohms on both the input and output. It is designed for use as an LO buffer amplifier stage or as a driver amplifier in transmit chains and is ideally suited for 38 GHz band point-to-point radios. Each device is 100% RF tested to ensure performance compliance. The part is fabricated using an efficient PHEMT process. The MTTF is >1,000,000 hours at a 150 oC junction temperature. Ordering Information1 Part Number Package MAAM-010651-000000 Bulk Packaging MAAM-010651-TR0500 500 Piece Reel MAAM-010651-TR1000 1000 Piece Reel MAAM-010651-000SMB Sample Evaluation Board 1. Reference Application Note M513 for reel size information. Pin Configuration2,3 Pin No. Function Pin No. Function 1 No Connection 9 Ground 2 Ground 10 RFOUT 3 RFIN 11 Ground 4 Ground 12 No Connection 5 VG1 13 VD3 6 VG2 14 VD2 7 VG3 15 VD1 8 No Connection 16 No Connection Paddle 3 Ground 2. MACOM recommends connecting unused package pins to ground. 3. The exposed pad centered on the package bottom must be connected to RF, DC and thermal ground. * Restrictions on Hazardous Substances, European Union Directive 2011/65/EU 1 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: https://www.macom.com/support MAAM-010651 Amplifier, Buffer 37 - 40 GHz Rev. V4 Electrical Specifications: Freq. 37 - 40 GHz, TB = 30C4, VDD = 4 V, IDQ = 250 mA5, Pin = -14 dBm, Z0 = 50 Parameter Units Min. Typ. Max. Input Return Loss dB -- 7 -- Output Return Loss dB -- 10 -- Small Signal Gain dB 17 21 24.5 Reverse Isolation (S12) dB -- 40 -- Output P1dB dBm -- 20 -- Output IP3 (@ +4 dBm SCL) dBm 27 30.5 -- PSAT dBm 19.5 22 -- 4. TB = MMIC Base Temperature 5. Adjust VGG between -1.0 and -0.1 V to achieve specified IDQ. Maximum Operating Ratings6,7 Parameter Absolute Maximum Input Power +20 dBm Drain Supply Voltage +4.3 V Gate Supply Voltage -1.5 to 0 V Operating Temperature -40C to +85C Junction Temperature +150 C Storage Temperature -55C to +150C ESD Machine Model Class A ESD Human Body Model Class 1A MSL MSL3 Handling Procedures Please observe the following precautions to avoid damage: Static Sensitivity Gallium Arsenide Integrated Circuits are sensitive to electrostatic discharge (ESD) and can be damaged by static electricity. Proper ESD control techniques should be used when handling these devices. 6. Exceeding any one or combination of these limits may cause permanent damage to this device. 7. MACOM does not recommend sustained operation near these survivability limits. 2 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: https://www.macom.com/support MAAM-010651 Amplifier, Buffer 37 - 40 GHz Rev. V4 Typical Performance Curves MAAM-010651-000000 : Small signal Gain (S21) Vd = 4V, Id1 = Id2 = 62.5mA, Id3 = 125mA MAAM-010651-000000 : Input Return loss (S11) Vd = 4V, Id1 = Id2 = 62.5mA, Id3 = 125mA 30 10 5 25 0 S11 (dB) S21 (dB) 20 15 10 -5 -10 -15 -20 5 -25 -30 0 37.5 38 38.5 39 39.5 40 37 37.5 38 39 39.5 Frequency (Ghz) MAAM-010651-000000 : Output Return loss (S22) Vd = 4V, Id1 = Id2 = 62.5mA, Id3 = 125mA MAAM-010651-000000 : Reverse Isolation (S12) Vd = 4V, Id1 = Id2 = 62.5mA, Id3 = 125mA 10 -20 5 -25 0 -30 -5 -35 -10 -15 40 -40 -45 -20 -50 -25 -55 -60 -30 37 37.5 38 38.5 39 39.5 37 40 37.5 38 Frequency (Ghz) 38.5 39 39.5 40 Frequency (Ghz) MAAM-010651-000000 : OIP3 vs Freq Pscl=+5dBm; Vd1,2,3=4.0V, Id1 = Id2 = 62.5mA, Id3 = 125mA MAAM-010651-000000 : C/I3 vs Freq Pscl=+5dBm; Vd1,2,3=4.0V, Id1 = Id2 = 62.5mA, Id3 = 125mA 36 60 35 58 34 56 33 54 32 C/I3 (dBc) OIP3 (dBm) 38.5 Frequency (Ghz) S12 (dB) S22 (dB) 37 31 30 29 52 50 48 46 28 44 27 42 26 37 37.5 38 38.5 Frequency (Ghz) 39 39.5 40 40 37 37.5 38 38.5 39 39.5 Frequency (Ghz) 3 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: https://www.macom.com/support 40 MAAM-010651 Amplifier, Buffer 37 - 40 GHz Rev. V4 Typical Performance Curves (cont.) MAAM-010651-000000 : Psat vs Freq Vd1,2,3= 4.0V, Id1 = Id2 = 62.5mA, Id3 = 125mA 26 26 25 25 24 24 23 23 Psat (dBm) P1dB (dBm) MAAM-010651-000000 : P1dB vs Freq Vd1,2,3= 4.0V, Id1 = Id2 = 62.5mA, Id3 = 125mA 22 21 20 22 21 20 19 19 18 18 17 17 16 16 37 37.5 38 38.5 39 39.5 37 40 37.5 38 38.5 39 39.5 40 Frequency (Ghz) Frequency (Ghz) MTTF MAAM-010651-000000 : Tch(max) vs. Package Base Temperature Vd1,2,3= 4V; Id1=Id2=62.5mA, Id3=125mA MAAM-010651-000000 : MTTF hours vs. Package Base Temperature Vd1,2,3= 4V; Id1=Id2=62.5mA, Id3=125mA 200 1.0E+13 180 1.0E+12 160 1.0E+11 140 Tch_max(oC) 1.0E+14 1.0E+10 1.0E+09 1.0E+08 1.0E+07 120 100 80 60 1.0E+06 40 1.0E+05 20 1.0E+04 0 1.0E+03 20 20 30 40 50 60 70 80 90 100 110 120 o 30 40 50 60 70 80 90 100 110 Package Base Temp (oC) Package Base Temp ( C) MAAM-010651-000000 : Operating Power De-rating Curve (continuous) 2.0 1.8 1.6 Pdiss (W) 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 20 30 40 50 60 70 80 90 100 110 120 130 140 150 Package Base Temp (oC) 4 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: https://www.macom.com/support 120 MAAM-010651 Amplifier, Buffer 37 - 40 GHz Rev. V4 App Note [1] Biasing - It is recommended to bias the amplifier with VD = 4 V and ID_TOTAL = 250 mA. It is also recommended to use active biasing to keep the currents constant as the RF power and temperature vary; this gives the most reproducible results. Depending on the supply voltage available and the power dissipation constraints, the bias circuit may be a single transistor or a low power operational amplifier, with a low value resistor in series with the drain supply used to sense the current. The gate of the pHEMT is controlled to maintain correct drain current and thus drain voltage. The typical gate voltage needed to do this is -0.3 V. Typically the gate is protected with Silicon diodes to limit the applied voltage. Also, make sure to sequence the applied voltage to ensure negative gate bias is available before applying the positive drain supply. App Note [2] Bias Arrangement - Each DC pin (VD and VG) needs to have DC bypass capacitance (100 pF/10 nF/1 F) as close to the package as possible. Lead-Free 3 mm QFN Package 5 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: https://www.macom.com/support MAAM-010651 Amplifier, Buffer 37 - 40 GHz Rev. V4 M/A-COM Technology Solutions Inc. All rights reserved. Information in this document is provided in connection with M/A-COM Technology Solutions Inc ("MACOM") products. 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